Dundee snatched the lead in the 35th minute when Lovell ran onto Fotheringham's through-ball and he coolly dispatched the ball past Hedman and into the bottom corner.

Celtic, however, hauled themselves back on level terms on 53 minutes later, when Petrov's initial shot was stopped but Camara poked home.

Then Celtic went ahead in the 62nd minute but Duffy will be asking questions of his defence. McGeady picked the ball up in the centre and was allowed to pull the ball across the face of the goal for Hartson to poke the ball home.

But Celtic were pegged back in 75th minute when Balde and Hedman failed to deal with Garry Brady's ball and Lovell capitalised to lob the ball into the back of the net for the draw.